Hellow guys, Welcome to my website, and you are watching Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge. and this vIdeo is uploaded by CBS Evening News at 2013-12-25T17:04:49-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
| Name | Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge |
| Video Uploader | Video From CBS Evening News |
| Upload Date | This Video Uploaded At 26-12-2013 01:04:49 |
| Video Discription | Named after one of Seattle's early mayors, the $80 million drill Big Bertha is 326 feet long, weighs 6,700 tons, and does much more than drill. John Blackstone reports on what the high-tech machinery can do, as well as its latest challenge digging in the depths of Seattle. |
| Category | News & Politics |
| Tags | big bertha | drill | seattle | world's | largest | tunnel | boring machine | big | change | high-tech | machinery | latest | challenge | digging | depths | video | cbs | news |
